import urllib.request
from lxml import etree

url = 'http://www.baidu.com'
headers = {
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36'
}
def create_request(page):
    if page ==1:
        url = 'https://sc.chinaz.com/tupian/xingganmeinvtupian.html'
    else:
        url = 'https://sc.chinaz.com/tupian/xingganmeinvtupian_'+str(page)+'.html'
    request = urllib.request.Request(url=url,headers=headers)
    return request
def get_content(request):
    response = urllib.request.urlopen(request)
    content = response.read().decode('utf-8')
    return content
def down_load(content):
    tree = etree.HTML(content)
    name_list = tree.xpath('//div[@class="container"]//img/@alt')
    img_list = tree.xpath('//div[@class="container"]//img/@data-original')
    for i in range(len(name_list)):
        name = name_list[i]
        img_url = 'http:'+img_list[i]
        print(name)
        print(img_url)
        urllib.request.urlretrieve(url=img_url,filename='./img/'+name+'.jpg')


if __name__ == '__main__':
    start_page = int(input('请输入开始页码'))
    end_page = int(input('请输入结束页码'))
    for page in range(start_page,end_page+1):
        #请求对象定制
        request = create_request(page)
        content = get_content(request)
        down_load(content)